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Performance You Can Trust

Every GIK product is tested at the world-renowned University of Salford, following BS EN ISO 354:2003 standards. This scientific approach not only ensures complete transparency in how our products perform, but also drives our R&D process. So every panel, bass trap, or diffuser we release is engineered to deliver results you can trust.

Product Description

Description

The Evolution PolyFusor™ provides a great mix of absorption and diffusion capabilities. Polyfusors offer a wider band of spatial diffusion than a typical quadratic residue diffuser, but do not affect the phase of the incident sound. Thus the Evolution PolyFusor™ is best suited to spreading mid and high frequencies out in a room.

Specifications

• Demi: 60cm wide x 60cm tall
• Standard: 60cm wide x 120cm tall
• 15.5cm thick
• Custom shorter heights available.
• Weight: 4kg - 8kg
• Effective absorption down to 60Hz
• Scatters mid & high frequencies
• Eliminate bass buildup & low-frequency resonances without over-damping
• A strong base frame and thin curved front plate which is filled with high quality absorption material.
• Polycylindrical shape
• Thin wood front plate (under the fabric)
• Wood end caps available in multiple veneer finishes
• NRC: 1.05 (versus foam products where NRC = 0.4)
• Quality hand-made construction and craftsmanship

A Wide Range of Applications

Evolution Polyfusors are useful in a wide variety of applications. Some of our favoriates are in live recording spaces, and on the front wall behind dipole speakers in a listening room.

Materials
Camira Cara Fabrics

GIK is excited to use the Camira Cara fabric line standard in all our products. The Camira fabric will look familiar to fans of Guilford of Maine fabrics, similar to their FR701 line but with different color options. With a richer aesthetic and tactile feel and wider range of available colors compared to our previous standard offerings, Camira Cara allows every product to look as good as it performs.

Sustainability

GIK Acoustics has long prioritized sustainability as a guiding principle. We carefully select materials that balance acoustic performance with environmental responsibility, sourcing from suppliers who share our commitment to reducing waste and carbon impact. Our products use durable, recyclable components that minimize landfill waste while maintaining the highest acoustic standards.

Health & Safety

Health and safety are built into every GIK product. All materials—including fabrics, cores, and wood elements—are formaldehyde-free, low-VOC, and independently tested for indoor air quality. This ensures our treatments are safe for studios, homes, schools, and offices alike. We believe superior acoustics should never come at the expense of well-being, which is why our products are made with clean, non-toxic materials that protect both the people who use them and the spaces where they’re installed.

Care Instructions
Camira Cara Fabric

Vacuum regularly. Wipe with a damp cloth using soap and water or use proprietary upholstery shampoo. For deeper cleaning use bleach or alcohol.

Veneer Finishes

Clean with a soft cloth or soft brush, lightly dampened with kukewarm PH-neutral, soapy water. Do not use solvents or chemical cleaners, but cleaning can be done with alcohol-based cleaners. Finally, wipe with a damp cloth afterward.

Best of Both Worlds

The GIK Acoustics Evolution PolyFusor© is a combination of a polycylindrical sound diffuser and an absorber merged into a single unit. Polycylindrical diffusors, polyfusors, or also known as poly acoustic diffusers are well-known for their excellent dispersion characteristics over a very wide range. The curved front plate of the Evolution PolyFusor© allows for virtually perfect spatial diffusion, while simultaneously allowing lower frequency waves to pass through to the cavity of absorption behind.

Versatile Bass Trap and Diffusor in One

The Evolution PolyFusor© is a diffusor absorber as it smoothly transitions as a bass trap from 80Hz, to upper-bass/lower-mid scattering device, to diffusor. Starts diffusing at 600Hz.

Thin wood poly diffuser lets low frequency waves in for low end absorption.

Some of our favorite applications are in live recording rooms, and in listening rooms, especially behind dipole-style speakers.

Enhanced Sound Control with Evolution PolyFusor©

The polycylindrical diffuser provides a great mix of absorption and sound diffusion capabilities. Polyfusors offer a wider band of spatial diffusion than a typical quadratic residue diffusor, but do not affect the phase of the incident sound. Thus the Evolution PolyFusor© is best suited to spreading mid and high frequencies out in a room.

Usage

The Evolution PolyFusor© is a diffusor absorber as it smoothly transitions as a bass trap from 80Hz, to upper-bass/lower-mid scattering device, to diffusor. Starts diffusing at 600Hz.

Thin wood poly diffuser lets low frequency waves in for low end absorption

Their design provides a great mix of absorption and sound diffusion capabilities. Polyfusors offer a wider band of spatial diffusion than a typical quadratic residue diffusor, but do not affect the phase of the incident sound.

FAQ

Are Evolution Polyfusors good in recording rooms?

Yes, they’re excellent for recording rooms, especially with acoustic instruments. The curved design both scatters sound and provides broadband absorption, keeping the room lively and natural while controlling unwanted reflections. This balance makes instruments sound full and realistic rather than boxy or overly dry.

How do they perform behind dipole or omnidirectional speakers?

Evolution Polyfusors are a perfect fit for that situation. On the front wall behind dipole or omnidirectional speakers, they diffuse and absorb rearward energy, enhancing depth and spaciousness without adding harsh reflections. The result is a more open, natural soundstage.

Can Polyfusors also help with bass control?

Yes. Unlike many diffusers that only work in the mid and high frequencies, the Evolution Polyfusor combines scattering with low-frequency absorption. This hybrid design means you get smoother bass response along with improved mid/high clarity.

Where should I place them for best results?

Common placements include the rear wall, side wall reflection points, or behind the speakers. In smaller studios, one effective strategy is alternating Polyfusors with absorbers to maintain energy and spaciousness while still keeping decay times under control.

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